Kim Kardashian and Rihanna attended the Roc Nation and Three Six Zero Pre-GRAMMY Brunch held at Private Residence on Saturday (February 7) in Beverly Hills, California.

Kim Kardashian: Showcasing her new shorter hairstyle, the reality star stayed true to form opting for a midriff baring Balmain look which involved a pencil skirt styled with accessories from both Balmain and Lanvin.

Rihanna: The singer wore a summery Altuzarra Spring 2015 look which some might think was brunch-inappropriate due to the bra top, but this is classic RiRi to me; sexy with an edge which she pulled off without trying too hard. Take note Mrs. West. The look was styled with black strappy sandals, Suzanne Kalan champagne diamond hoop earrings, a Jack Vartanian ring, and two Ivy rings.

She’s provocative. She’s brash. She’s bold. And she’s completely unapologetic. All of which makes Rihanna the perfect recipient for our Fashion Rebel nod, a newly added Best Of award for 2014.

Rihanna has been pushing the envelope and colouring outside the lines for awhile now, but this past year may have claimed her most memorably daring ensembles yet. Breaking all the rules, she marched to her own uber-sexy beat, showing off her attitude and assets, often with as little fabric as humanly possible.

Yet none of her rebel wardrobe could have prepared us for that gown at the CFDA Fashion Awards—you know the one. The sparkling, sheer Adam Selman fishnet dress was one Swarovski crystal away from total nakedness, but we’d expect nothing less from our resident fashion rebel. Her gothic-punk, black sheer lace Givenchy Couture number at the iHeartRadio Music Awards, worn with a green pout, was tame in comparison but no less unorthodox.

It’s not that she didn’t have plenty more modest, at least on her terms, outings. But they still had every bit of Rihanna’s signature sexed-up, rebel edge—just without so much skin. Sometimes even rebels have a softer side, after all.

Rihanna performed on stage during her Diamond Ball for The Clara Lionel Foundation held at The Vineyard on Thursday (December 11) in Beverly Hills, California.

A big performance needs a big gown and they don’t come much bigger than a Zac Posen gown.

Having worn a gown by the same designer for the red carpet, she opted to go bigger, donning a midnight-blue duchesse and taffeta strapless ball gown from the Resort 2015 collection, which dominated the stage.

Opting for yet another stunning Chopard necklace, this Met Gala-worthy gown was brimming with both drama and glamour – i.e. it couldn’t have been a more perfect fit for Rihanna.